Make sure you have the right brake line bender as per the radius size of the tube you will work on.

Set up the bender according to the radius size of the pipe. Some benders come with calibrated markings. This will help you to mark the places where you need to make the bends.

Sometimes, you may need to make more than a few bends on one tube. So, a bender with a marking gauge will help you do that. The next step is to align and push inside the tube in the bender.

Now, you can start to bend. When you have reached the point where you have the bend you wanted, dislodge the tube from the bender.